baber/WOPTO huggingface dataset:
Patent GB-1172581-A (GB)
Title: Polymerisation of Ethylene and Alpha-Olefins
Inventor: JENKINS DEREK KEITH
IPC: C08F10/00
Filed: 1967-02-02
Abstract: 1,172,581. Olefin polymerization. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 2 Feb., 1968 [2 Feb., 1967], No. 5137/67. Addition to 1,077,397 and 1,127,590. Heading C3P. Ethylene and an α-olefin and optionally not more than 10% of a third monomer are copolymerized using a catalyst system comprising: (a) a siloxy compound of vanadium, titanium or zirconium; (b) an aluminium trihalide or dihalohydride; (c) an alkyl, aryl or aralkyl organo lithium compound; (c) being brought into contact with (b) when (a) or at least one monomer is also present. Preferred (a) components are tetrakis-(trimethylsiloxy) titanium (IV) and vanadyl tris-(trimethyl siloxane), and the other preferred components are aluminium tribromide and n-butyl lithium. The mole ratio of (b) to (a) may be 8-50: 1, and of (b) to (c), 0.25-5: 1. The α-olefin may be ethylene or propylene and the termonomer a non-conjugated diene such as dicyclopentadiene. Preferably, the reaction is carried out at - 30‹ to + 150‹ C. and in a hydrocarbon solvent. In the Examples, (1) ethylene and propylene are copolymerized, (2) ethylene, propylene and dicyclopentadiene are terpolymerized and (3) ethylene is homopolymerized, in cyclohexane/ hexane using as catalyst, vanadyl tris-(trimethyl siloxane), AlBr 3  and n-BuLi, this reaction being terminated using methanol. In a further example, (1) above is repeated using as the siloxy component tetrakis-(trimethylsiloxy) titanium (IV). The polymer is isolated using methanol containing an antioxidant.
Patent GB-661219-A (GB)
Title: Improvements in or relating to electrical amplifier circuits
IPC: H03F3/32
Filed: 1949-02-25
Abstract: 661,219. Converting. WESTERN ELECTRIC CO., Inc. Feb. 25, 1949 [Feb. 28, 1948], No. 5205/49. Class 38 (ii). [Also in Group XL (c)] Positive or negative supplies are obtained from a saw-tooth wave generator (see Group XL (c)) by connecting a circuit 6a, 6b or 6c in the anode circuit of the valve 710 of the generator shown in Fig. 4. Current flows through this valve during the first part of the long flank of the wave due to energy stored in the output circuit during the remaining part and obtained from a source 721. In Fig. 6a the capacitor 751 is charged negatively by this current until a gas-filled valve 753 conducts to limit the voltage developed across the circuit. The output is smoothed by a filter 754, 755. In Fig. 6b the current is passed through the primary of a transformer the secondary of which is connected to a rectifier 764, and a smoothing capacitor. A further rectifier 761 absorbs the positive transient voltage developed across the primary due to the secondary current pulses. If the rectifier 764 and secondary winding are reversed a negative voltage is produced. In Fig. 6c the current is passed into a circuit 770, 775 resonant at the saw-tooth repetition frequency, via the lower tap or the inductor and the resulting voltage across the circuit is rectified by a valve 776. When the oscillatory voltage at the upper tap builds up sufficiently the second rectifier conducts to limit the voltage developed at the first rectifier and to provide a further source of current at terminal 774.
Patent GB-1133411-A (GB)
Title: Papermaking machine
IPC: D21F9/00
Filed: 1966-02-08
Abstract: 1,133,411. Paper-making apparatus. KIMBERLY-CLARK CORP. 8 Feb., 1966 [19 Feb., 1965], No. 5519/66. Heading D2A. A paper-making machine of the type in which stock is directed between a wire 15 and a fabric - e.g. felt 76 - both passing around a roll 22 has either the wire section, or the felt section movable away from the other. In the embodiment shown the wire section which includes a guide roll 17 having a handwheel 32 to adjust one end thereof, a stretch roll 19 mounted on arms 34 which are pivoted at 35 and swingable by screw-jacks 38 through a yieldably connecting device 37, and a save-all 61, is mounted on wheels 42 movable along rails 43 from an operative position in which the section is secured by toggle bolts 53 to a wire-changing position in which cantilevers 56, 57 are held at one end in a slot and at an intermediate point by jacks, and in which support blocks 46, 47 are removable. During changing of the felt 76, the forming roll 22 normally mounted on bracket 68 is mounted alternatively on brackets 68 and 75. The headbox, which may have one or two tapered conduits 71 directing stock in between parallel plates 73, may be mounted, as shown, above forming roll 22, or in, an alternative embodiment, beneath roll 22 so that the formed web leaves roll 22 on top of the felt. In this alternative embodiment the wire section has two stretch rolls, while the wire transfer roll mounted above the forming roll is mounted on adjustable arms. Both embodiments include conventional wet-press and Yankee drier sections.
Patent GB-573466-A (GB)
Title: Improvements in processes for surface-carburising steel
IPC: C23C8/22
Filed: 1941-04-30
Abstract: 573,466. Cementation. GENERAL ELECTRIC CO., Ltd., JENKINS, I., and WILLIAMS, S. V. April 30, 1941, No. 5604. [Class 72] To prepare the surface of steel for carburizing with a carbon-containing gas, the steel is exposed to a mixture of carbon monoxide, water, carbon dioxide and hydrogen with or without nitrogen, in which the proportion of these compounds is such that at the temperature, e.g. 950‹ C., of the exposure to the carboncontaining gas, the mixture is substantially neutral or reducing in respect of the reversible reactions and is out of equilibrium with respect to the reversible reaction CO2+H2#H2O+CO. Examples of such gases produced by burning coal-gas in a volume of air insufficient for complete combustion are : (1) 5.6 per cent of CO2, 7.1 of CO, 10.6 of H2, 2.3 of H2O and 74.4 of N2; (2) 7.3 of CO2, 4.6 of CO, 6.5 of H2, 2.3 of H2O and 79.3 of N2; (3) 5.2 of CO2, 9.3 of CO, 15.3 of H2; 2.3 of H2O and 67.9 of N2. An example of a carburizing gas contains 10.7 per cent of CO, 15 of H2 and 74.3 of N2 ; or example (3) above with the CO2 and H2 removed.
Patent GB-853265-A (GB)
Title: Improvements in or relating to radiators for space heating
IPC: F28D1/053
Filed: 1957-02-19
Abstract: 853,265. Radiators for heating buildings. RANTE, E. Feb. 19, 1957, No. 5645/57. Class 64(2) Vertical tubes 1 of rounded oblong section have a tubular element 2 at each end for connection to horizontal headers 3 for the supply of hot water and the headers are set out at one side of the row of tubes 1 as shown in Fig. 2. The tubes may be in pairs, as in Fig. 3. Each pair in a plane at right angles to the axes of the headers 3. The tubes of a single row may each be at right angles to the headers or each set obliquely thereto but parallel to one another. In Fig. 5 the row is arranged in two groups in which the tubes 'are set obliquely to the headers but the angle of set of one group is supplementary to that of the other group.
Patent GB-677564-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1950-03-08
Abstract: 677,564. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd..(United Shoe Machinery Corporation). March 7, 1951 [March 8, 1950], No. 5814/50. Class 112. [Also in Group XXIV] Starting and stopping; needle-driving mechanism, disconnecting; chain-stitching.-In a machine having a clutch for disconnecting the drive to the main shaft and means for disconnecting the needle-driving mechanism, the latter means may be arranged to be optionally actuated with the clutch, and means actuated with the clutch are provided to brake the main shaft. The invention is shown embodied in the machine described in Specification 392,580, having a straight eyed needle 14 co-operating with a rotary looper 16 on the main shaft 18 to form a crank 20 on the shaft through a pitman 22 and two levers 26, 30 pivoted at 28 and normally connected together by a spring-pressed latch 38 pivoted on a stud 40 on the lever 30 and engaging a pin on the lever 28; a lever 50 connected by a rod 60 to the usual treadle engages, when the latter is fully released, the tail of the latch 38 to disconnect the lever 30 in its highest position and has a notch to engage the stud 40 to hold the disconnected lever in that 'position.. The -treadle rod carries a collar 88 engaging a lever 84, 78 controlling a clutch 74 through which the shaft 18 is driven from a pulley 72; the clutch is engaged only when the treadle is fully depressed. When the clutch is disengaged the shaft 18 is stopped by engagement of a brake shoe 100 carried by the non-rotating clutchactuating yoke 76 (not shown, Fig. 1) with the handwheel 102. The operator can thus stop the machine with the needle raised and disconnected, by releasing the treadle completely or, as is required in the case of a temporary stoppage in the middle of a seam, with the needle remaining connected and the last thread loop held by the looper ready for the resumption of sewing, by partial release of the treadle.
Patent GB-218351-A (GB)
Title: Improvements in and relating to the method of manufacturing rope
IPC: D07B3/06
Filed: 1923-02-28
Abstract: 218,351. Haggie, S., and Haggie & Son, Ltd., R. H. Feb. 28, 1923. Wire ropes; strands of special section with; machines for making.-The core of a strand for a rope composed of six triple-edged strands is made of triangular section with a creeping apex, so that it is not necessary to twist the core after formation by means of pressure rollers. The core is formed of three sets a. b, c of two wires each which are shown separated in Fig. 1 for the sake of clearness. The three sets of wires are drawn from flyers which are caused to rotate backwards relatively to the cage of the machine used for making the core, and each flyer comprises two spools, delivering the individual wires, and constrained so that their axes are maintained horizontal. The machine is geared so that while the cage rotates through 360‹ the flyers rotate through 90‹ and this causes a core to be formed, the edge of which has correspondingly crept through 60‹. The figures t show sections of the core at various points along its length. In place of using double wires, double strand may be used. The strands are formed by laying round wires over the cores and are combined to form a completed rope as shown in Fig. 3.
Patent GB-328073-A (GB)
Title: Improvements in light reflecting devices for advertisement and like signs
IPC: G09F13/14
Filed: 1929-02-22
Abstract: 328,073. MacNab, J., and 24 Hour Signs, Ltd. Feb. 22, 1929. Name and number plates. - In a sign having characters built up of a plurality ot reflector units, each unit, which may take the form of a glass disc, has one face a plain and the other formed of straight corrugations, the two faces band c of each corrugation being differently inclined. The device may lie substantially in one plane and may be curved cylindrically about a vertical axis in the plane of the drawing so that the face a is convex. The corrugated face may be silvered.
Patent GB-693651-A (GB)
Title: Spreadable compositions adapted to be hardened to resinous masses and hardening process for the same
IPC: C08G59/22
Filed: 1951-03-12
Abstract: Compositions hardenable upon addition of a hardening agent comprise condensates of polyhydric compounds with epichlorhydrin or dichlorhydrin having a viscosity of at least 100 poises at 25 DEG  C. and an average number of epoxy groups per molecule greater than 1.0, in admixture with sufficient cyano substituted hydrocarbon melting below 10 DEG  C. to reduce the viscosity to between 1 and 80 poises at 25 DEG  C.  Suitable cyano-substituted hydrocarbons are acetonitrile, propionitrile, butyronitrile, methyl ethyl acetonitrile, isovaleronitrile, capronitrile, lauronitrile, p acrylonitrile, methacrylonitrile, cis-and trans-crotonitrile, allyl cyanide, oleonitrile, elaidonitrile, propiolonitrile, glutaronitrile, adiponitrile, suberonitrile, allyl malononitrile, cyclohexylcyanide, benzonitrile, o-toluonitrile, and phenylacetonitrile or mixtures thereof.  The condensates may be as described in Specifications 680,997, 681,001 and 681,991.  The glycidyl ethers used may be derived from polyhydric phenols or polyhydric alcohols, or mixtures of both kinds.  Suitable compositions may contain 50-80 per cent by weight of phenolic ether, 10-40 per cent of alcoholic ether and 1-30 per cent of nitrile.  Dyes, pigments and/or fillers may be included, e.g. zinc oxide, silica, alumina, clay or bauxite.  Known hardening agents may also be included.  For adhesive purposes the compositions containing a hardening agent are spread, the surfaces joined and the composition cured, if desired, at raised temperature. Examples describe a number of different compositions and their uses for adhesive purposes.  Specifications 629,111, 630,647 and 630,663 also are referred to.
Patent GB-1470917-A (GB)
Title: Catalyst for the hydrotreatment of hydrocarbons and a process for preparation and application of said catalysts
IPC: B01J23/62
Filed: 1975-02-12
Abstract: 1470917 Reforming catalysts COMPAGNIE FRANCAISE DE RAFFINAGE 12 Feb 1975 [13 Feb 1974] 6026/75 Heading C5E [Also in Division B1] Hydrocarbon feeds are hydroreformed in contact with a catalyst comprising a refractory mineral oxide carrier comprising combined halogen and, in free or combined form, 0À02-2% wt. of at least one platinum-group metal, 0À02- 2% wt. of at least one of Mo, Cr and Mn, 0À02-2% wt. of tin and, optionally, 0À05-0À5 wt. per cent sulphur. The examples describe (i) the hydroreforming of n-heptane at 520 C., 1 atmosphere pressure, a LHSV of 0À5 or 2 and a hydrogen/heptane molar ratio of 18 : 1 or 5 : 1 to give a specified range of products, and (ii) the hydroreforming of a charge of boiling range 76-151 C. of specified composition at 480 C., a LHSV of 2 and hydrogen/hydrocarbon molar ratio of 5 : 1.
Patent GB-1182242-A (GB)
Title: Improvements in or relating to Nitrides.
Inventor: PENDSE DEODATTA RACHUNATH
IPC: C23C4/10
Filed: 1966-02-11
Abstract: 1,182,242. Coating with nitrides. UNITED STATES BORAX & CHEMICAL CORP. Feb. 8, 1967 [Feb.11, 1966], No.6040/66. Heading C7F. [Also in Division C1] A coating of a refractory nitride is produced on a substrate by plasma spraying, in nitrogen, of the metal or other element whose nitride is to constitute the coating. The metal or other element may be fed into a nitrogen plasma in elemental form, or as a compound which decomposes in the plasma. Preferably the metal, other element or compound is suspended in the form of a powder in nitrogen gas. Aluminium or an aluminium/aluminium nitride mixture may be sprayed to form a coating of aluminium nitride and aluminium. Titanium hydride may be sprayed to form titanium nitride. Substrates of aluminous concrete, steel and graphite may be coated and the substrate and the coating formed on it may, together, comprise a crucible.
Patent GB-726092-A (GB)
Title: Improvements in or relating to advertisement or like projectors
IPC: G09F13/00
Filed: 1954-07-30
Abstract: 726,092. Changing signs. PARKER, T. A. July 30, 1954, No. 6088/53. Class 3 (1). An advertising machine comprises a casing 4 fitted with one of more light projecting optical systems consisting of a light source 15 one or more projecting lens systems, and for the, or each of the systems a light condensing device 16 in combination with a cylindrical screen member 22 encircling the light source and condenser device or devices, the screen depending from the periphery of a vane wheel through which a convection current of air generated by the heat of the light source passes so as to rotate the vane wheel and the screen, the screen carrying circumferential lines of wording delineated by perforations through which light passes from the condenser device or devices to the projection lens system or systems. The screen is made of transparent, translucent or opaque material. The vane wheel is mounted by a pivot pin 23 on a bearing 10 carried by a bracket 9. This is slidably mounted on the rear wall of the casing in guides 7 and is clamped in position by a nut 5. This adjustable mounting permits the screen to be raised or lowered so that desired lines of wording can be projected. The condensers 16 each consist of the bulb of an electric light, filled with water which may be coloured; the normal bayonet cap is fitted and each support 14 is slidably adjustable to enable the distance of each condenser from the lamp to be altered. The projecting lens systems each consist of a carrier 13 for a projection lens, which is slidably mounted for focussing, in a sleeve 12. Each system is fitted with a semicircular screen so that one or other of two sets of lines of wording on the screen 22 can be projected at a time by rotating the semi-circular screen. The lines of wording on the screen 22 are spaced so that without the semi-circular screen two at a time would be projected.
Patent GB-577919-A (GB)
Title: Improvements in or relating to gun mountings
IPC: F41G5/04
Filed: 1944-04-01
Abstract: 577,919. Gun mountings; sights. RICE, E. A. B., ROSE, A. G., NICHOLLS, K. H., CURTIS, S., and ROSE BROS. (GAINSBOROUGH), Ltd. April 1, 1944, No. 6104. [Classes 92 (i) and 92 (ii)] Relates to gun mountings of the kind in which the pivotal movement of the guns 11 is controlled by a sighting arm 24, movement of which brings into operation follow-up mechanism which causes the guns to move substantially as one with the sighting arm. According to the invention the sight 26 is pivotally mounted on the arm 24 about an axis 28 normal to the line of sight, and means are provided for imparting to the sight an angular movement about axis 28 to compensate for any training movement that arm 24 may make before the guns commence their training movement, such compensating movement varying from a maximum, when the line of sight lies normal. to the training axis, to zero when it lies parallel to the training axis. The mechanism shown is similar to that described in Specification 577,908, comprising as in that Specification link mechanism 41, 42, 43 connecting the sight carrying ring 39 to a twoarmed pivoted lever 47, 48 pivoted on an operating member 22 upon which arm 24 is pivotally mounted. Lever 43 has a slot 46 which receives a roller 45 on arm 47, and it is the provision of this slot which affects the varying compensating movements imparted to the sight for different positions in elevation of the sighting arm. The arm 48 is slotted for engagement with a roller 49 mounted on an arm 50 about an axis which extends radially from the training axis. When arm 24 is moved in training, carrying the operating member 22 with it, and during the period of lag, that is before member 22 operates a valve 16 for moving the turret and guns in azimuth, the lever 47, 48 rocks about its pivot and thereby effects the required compensating movement of the sight. Specifications 576,621 and 577,904 also are referred to.
Patent GB-331485-A (GB)
Title: Improvement in process of fractionally condensing composite vapors
IPC: B01D5/00
Filed: 1929-02-25
Abstract: 331,485. Losey, A., Gottlieb, P., and Haupt, L. L. Dec. 11, 1928, [Convention date]. Vapour engines.-The fractional condensation of vapours (such as those obtained by distilling mineral or vegetable oil, tar, hydrocarbons, oil shale, coal, wood, process sludge, and re-run condensates) is effected by passing them into a fractionating tower 5 by a pipe 3 condensing fuel oil 7 directly and passing the vapours through a reciprocating engine 11 driving an electric generator 12, whereby heat is extracted from the vapours and a definite fraction 16 condensed, constituting a lubricating stock. Distillate oil, 26, gas oil 36, naphtha 50, a water-gasoline mixture 71, and a high; grade gasolene 84 are similarly produced by the heat-abstracting effect of turbines 21, 31, 48, 68, 81. Condensates are run off at 18, 28, 38, 58, 72 and 91, part, of the naphtha 50 being led back to trays 35, 42, 43 to condense part of the vapour to form a, kerosene condensate 44 which is run off at 64 and to be itself in part revapourized. Water and gasoline are separated in a water separator 75. High grade gasoline produced in a vacuum condenser 83 is pumped by a rotary pump 86 together with the vapours to a discharge tank 88 and water separator 90. In a modification, kerosene may be condensed by passage through a heat engine, and may be in part returned to condense gas oil and be itself revaporized. Specification 331,526 is referred to.
Patent GB-119413-A (GB)
Title: Improvements in or relating to the Heating Flues of Chamber Ovens or Retorts for Producing Gas and Coke or Fuel.
Inventor: SIMPSON CHARLES WOOD
IPC: F23D99/00
Filed: 1918-04-12
Abstract: 119,413. Simpson, C. W. April 12, 1918. Retort furnaces and coke ovens. - A system of heating flues comprises vertical combustion flues 9 alternating with vertical return flues 10 located in the walls separating adjacent retorts or oven chambers. Burner blocks 5 with removable nozzles 6 are fitted at the base of each combustion flue and supplied with gas from the main 2 through longitudinal flues 4, while air is supplied from regenerators through flues 7 beneath the soles of the oven chambers. The return flues communicate at their lower ends with flues 12 running parallel with the air flues 7 and leading to the regenerators. Inspection flues 14 are arranged in alinement with the combustion flues, and through them the burner nozzles can be removed and replaced.
Patent GB-935932-A (GB)
Title: Process of manufacture of spinnerets, particularly for spinning and extruding synthetic textiles, and a spinneret obtained by this process
IPC: B21C25/10
Filed: 1962-02-19
Abstract: <FORM:0935932/IV(a)/1> In making a spinneret, for spinning and extruding synthetic textiles, having a pierced stone 5 welded in a metal bezel 4, a cylindrical hole 2 is pierced in a metal plate 1, a ball or punch having a spherical or conical head of greater diameter than the hole is forced into the hole to widen partially the diameter thereof and to form an inclined annular shoulder 3 and the metal bezel in which the stone is welded is driven into the widened hole. The plate 1 may be of stainless steel and the shoulder 3 therein may be conical or concave, the bezel 4 may be of stainless steel, titanium or zirconium and has a reduced diameter part in which the stone 5 of ruby, ceramic or diamond is welded.  The bezel is driven into the widened part of the hole so that a shoulder 7 on the bezel engages the shoulder 3 in the hole and a clearance 6 exists between the reduced part of the bezel and the unwidened part of the hole.
Patent GB-677177-A (GB)
Title: Improvements in or relating to a tele-autograph or follow-up system
IPC: G08C21/00
Filed: 1950-03-14
Abstract: 677,177. Frequency discrimination. CONSOLIDATED ELECTRIC CO. March 14, 1950 [March 16, 1949], No. 6357/50. Class 37. [Also in Group XXXVIII] The invention relates to a follow-up system, more particularly a writing telegraph, in which the frequency of an oscillation is varied in accordance with the position of the stylus, and consists in employing at the receiver the frequency discriminating circuit of Fig. 2. The received frequency is applied to valve 53 whose outis applied to transformer 63 which has two secondary windings 65, 66. The winding 66 supplies out-of-phase signals to diodes 72, 73 which are both fed with a signal over condenser 83 from the junction of condenser 46 and inductance 47 in series across the secondary 65. If the condenser 46 and inductance 47 are tuned to the incoming frequency, the signal fed over condenser 83 is 90 degrees out-of-phase with both the signals on the diodes from secondary 66 and the output from the diodes on conductor 81 is zero. If the incoming signal departs from the frequency to which 46, 47 is tuned, the signals applied over 83 vary in phase accordingly to provide an output at 81 of appropriate magnitude and sign.
Patent GB-1530777-A (GB)
Title: Multiple armature permanent magnet motor/actuator
IPC: H02K16/02
Filed: 1977-02-16
Abstract: 1530777 Motors with permanent-magnet stators SINGER CO 16 Feb 1977 [7 Sept 1976] 06497/77 Heading H2A [Also in Division D1] Plural independent rotors 16, 18, 20 with non- magnetic, e.g. plastics, cores are located between a single pair of permanent magnets 12 in a magnetically-permeable frame 10.